Implementation of SHA-256 and SHA-224, with guidance from this page.
We know you don't want to install Nim (although that breaks Yusuf's heart to hear), so we're making it easy for you. Pre-built binaries for Windows, Linux, and macOS (on 64-bit AMD CPU's, the majority of people) are provided in the "releases" page, so you can download it (and wordlist.txt for the homework) to wherever you like.
If the pre-built binaries don't work for you, please let Yusuf know in any way you can (yelsharawy20@stuy.edu, Messenger, in-person), and he can provide you with a .zip and instructions to build sha-ya using only a C compiler.
Usage: sha-ya [OPTION]... [FILE]...
Print SHA256 or SHA224 checksums.
With no FILE, or when FILE is -, read standard input.
-a, --algo {sha224|sha256} choose SHA algorithm to use
-w, --wordlist <file> hash each line of this file separately
-i, --initial <hash> set initial hash, as 64 characters of hex
-l, --length <n> set final hash length (1 <= n <= 8)
-h, --help display this help and exit
The order of the options and arguments does not matter: `--initial` and `--length` always take precedence over `--algo`.
Note that SHA256 would be configured like so:
--initial:6a09e667bb67ae853c6ef372a54ff53a510e527f9b05688c1f83d9ab5be0cd19
--length:8
and SHA224 like so:
--initial:c1059ed8367cd5073070dd17f70e5939ffc00b316858151164f98fa7befa4fa4
--length:7